1 /*
2 * Copyright (c) 2006-2021, RT-Thread Development Team
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 *
6 * Change Logs:
7 * Date Author Notes
8 * 2021-09-02 WillianChan add var_export example code
9 */
10
11 #include <var_export.h>
12
13 /* use VAR_EXPOR() to export 10 pieces of data into sections */
14 VAR_EXPORT(module0, identi0, 0);
15 VAR_EXPORT(module1, identi1, 1);
16 VAR_EXPORT(module2, identi2, 2);
17 VAR_EXPORT(module3, identi3, 3);
18 VAR_EXPORT(module4, identi4, 4);
19 VAR_EXPORT(module5, identi5, 5);
20 VAR_EXPORT(module6, identi6, 6);
21 VAR_EXPORT(module7, identi7, 7);
22 VAR_EXPORT(module8, identi8, 8);
23 VAR_EXPORT(module9, identi9, 9);
24
found_by_module(void)25 void found_by_module(void)
26 {
27 ve_iterator_t iter;
28 const ve_exporter_t* exporter;
29 ve_module_t module;
30 rt_base_t value;
31
32 /* query all exporters with the same name as module1 */
33 if (!ve_module_init(&module, "module1"))
34 /* initialize the iterator */
35 ve_iter_init(&module, &iter);
36 else
37 return;
38
39 while (1)
40 {
41 /* start iterating */
42 exporter = ve_iter_next(&iter);
43 if (exporter == RT_NULL)
44 break;
45 else
46 {
47 /* checks whether the value exists */
48 if (ve_value_exist(&module, "identi1") == RT_TRUE)
49 {
50 value = ve_value_get(&module, "identi1");
51 rt_kprintf("[ve_example] value = %dn", value);
52 return;
53 }
54 else
55 {
56 rt_kprintf("[ve_example] value not exist.\n");
57 return;
58 }
59 }
60 }
61 }
62 #ifdef RT_USING_FINSH
63 #include <finsh.h>
64 MSH_CMD_EXPORT(found_by_module, found by module);
65 #endif /* RT_USING_FINSH */